/******************************************************************************
	This file is a part of the Snapshot Bioinformatics Project

	Copyright (C) 2012-2013 Jarom Schow

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/

#include "LogFile.h"

#include <QtCore/QFile>

using namespace Bio;

const int	c_maxBufferSize = 4096;

/**
**/
LogFile::LogFile( const QString &filename ) : m_filename( filename )
{
}

/**
**/
LogFile::~LogFile()
{
	flush();
}

/**
**/
void LogFile::error( const QString &msg )
{
	log( "Error: " + msg );
}

/**
**/
void LogFile::warning( const QString &msg )
{
	log( "Warning: " + msg );
}

/**
**/
void LogFile::log( const QString &msg )
{
	m_buffer += msg.toLatin1();
	m_buffer += '\n';

	if( m_buffer.size() >= c_maxBufferSize )
		flush();
}

/**
**/
void LogFile::flush()
{
	if( m_buffer.isEmpty() )
		return;

	QFile	file( m_filename );

	if( !file.open( QIODevice::WriteOnly | QIODevice::Append ) )
		return;

	file.write( m_buffer );

	file.close();

	m_buffer.clear();
}
